Hydraulic steering apparatus.



`No. 868,160. kPATEN'IED 0CT.15, 1907.

H. S. DB PUY.

HYDRAULIC STEERING APPARATUS.

APPLIOATION r1LnD.DBo.zo.19oe.

' z SHEETS-SHEET 1.

PATENTED 00T. l5, 1907.

R. s. UR PUY.

HYDRAULIC STEERING APPARATUS.

APPLICATION FILED 1330.20, 1906.

2 BEBBTS-SHEET 2.

.Rf/[NURSES:

ATTORNEY uw /SM y in whichvpl'e and effectivesteering gear which isreliable in opeither for operating the rudder by tiller-ropes from aHART s. DE PUY, oF SEATTLE, WASHINGTON.

HYDRAULIC STEERING APPARATUS.

f N'o. 868,160. V,specification'of Letters Patent. Patented Oct. 15,

Application nea December 20,1906. semi No. 348.668..

To all whom it may concern:

Be it known thatI, HART S. DE PUY, a citizen of the United States,residing at Seattle, in the county of Kingand State oWashington, haveinvented certain new and useful Improvements in Hydraulic SteeringApparatus, oi which the following is a specification, reference beinghad therein tothe accompanying drawings,

Figure 1 is a plan view of portions of a marine vessel provided withsteering apparatus construct-ed in accordance with my invention; Fig. 2,a longitudinal section view one of the powercyliuders illustrated in theforegoing View; and Fig. 3, a fragmentary plan view of the valve and itscontrolling mechanism with the valve cylinder shown in section.

The object of this invention is the provision of a simer'ation, andwhich can be interchangeably employed wheel as ordinary orbypower-nieans'which is likewise controlled from the pilot house.

With these ends in view the invention consists in the novelconstruction, adaptation and combination of parts which will hehereinafter particularly described and claimed` In the drawings, thereference numeral 5 designates a rudder-stock to which is fixcdlyconnected a quadrant 6, as ordinary. 7 is a steering Wheel locatedwithin the pilot house, or at -any other suitable place upon the vessel,and is connected with saidquadrant by tiller lines 8 and 9 which areguided by pulleys 10, so that the lines will ,bc lcd downwardly from thewheel, thence transversely, thence longitudinally and finallytransversely to'thcir connection with the quadrant. Included 'within thelorc-and-ait portions of said lines are rods 8 and 9l which respectivelyextend axially and loosely through vtubular piston-rods l1 of hydraulicer cylinders 12 which are rigidly secured to the Those piston rods havelixcdly con` n :lcd to one ond ol cach u piston l3,'scc llig. 2, whichare suitably packed as by annular cup-leathers 13 to make anon-leokzthle lit with the cylinders. (lne head 14; of nach cylinder isprovided with a stnlling box 14" through which thtl tubular piston-rodspass, and the opposite heads l5 are centrally upcrtured, as at l5, toallow the cable portions of thel steering lines` unobstructodly passingtherethrough in thc operations oi the apparatus.

lu practice the cylinders are desirably constructed oi wrought iron pipehaving screw ihrcadcd ends which I register with internal threads o thetwo heads. At the ends of each ol rods 8 and 9 which are adjacent oisaid apertured heads is a collar lt'i adapted to be engaged hy the.respectivo pistons and move those. rods therewith, together with theconnected steering pars ol the lines, y when the pistonis propelledthnreagainst hy thc'iorcc vof the power medium acting'- upon theopposite sides of the pistons. 17 represents a pump actuated desirablyby steam which is admitted or throttlcd, dcsirably, by any of the Wellknown regulating valves, indicated by 177 which is controlled by thepressure had within the Water supply pipe 18 leading from the pump andwhereby the water is continuously maintained at a suitable pressure tomeet'the service required. This supplyv pipe leads to a valve cylinder.19 and from thence by pipes 2O and 20 to said power cylinders whereintothey communicate as by a port 14 in the head 14 of each. Thevalve-cylinder, see Fig'. 3, is provided desirably with a-liner 21 `tofurnish a renewable smooth wearing surfacefor the valve and isperforated as at 21 21( and 217 positioned opposite the respective saidpipe connectionswith the cylinder and serve as water portsltherefor.`v4The valve cylinder is likewise 'provided with water outlet openings22 through which and thepipe -23 communication' is had with -a waterreserillustrated embodiment of the invention is of the dou- `Pivotallyconnected by a pin 28 with the outer end I of the valve rod is a lever29 having its opposite ends similarly connected by pins 30 andllwithlinks 30 and 31. The latter of these links make pivoted connection withan arm of the adjacent of two-levers 32* and 33 mounted upon rotatable,but otherwise nonmovable'fulcrums 32 and 33 and are'connected by reachrods 34 and 35 so that they will vibrate in unison.

Fulcrum 32/ is comprised of a vertical spindle extended upwardly throughsuitable journal boxes and is provided with a handle bar 36 withineasy'reach oi the steersman and whereby the latter can manipulate the valveto admit the power medium to either of the hydraulic cylinders andrelease it from the other and thus swing the rudder to either sidepredeterminately. The link 30, aforesaid, operatively connects the arm'of. the lever 29, opposite to that connected with the lever 33;

` with a crank-arm 37 secured to the rudder-stock, or

through other intermediate connections which will impart an equivalentmotion to this lever. 'lhe purpose of the mechanical connection betweenthe rudder stock und the valve is to allow the latter being operated bysaid lever handle when movement is to be imparted thereto by thestcersman and thus control the flow of the power medium to swing therudder through the thrusting of the pistons of one or the other of thehydraulic cylinders acting against the opposing collar 16. When therudder is swervedfhowever, the arm `37 cornes into play and moves thelever 29, about the pin 7 5 voir 24, which; in.turn,is connected withthe cylinder 2 of the pump by a pipe 24 l The valve employed in the 31as its axis,' to cause the'valvc being brought into such position as tointercept the further llow of the power medium into or from the r0poctivo power cylauch power cylindor into proxiniiiy of the hoods i4,:is' indicated by hrokon linos lil in 2, Whcroupon tho rods 8 and 9 mayho movod with tho tilloi linos from the Stooi'ing \vlicol andindopondontly of the powor pistons dnd still, rol (Llodiar 36 as anindimitor to disclose the angular position olf the rudder.

u l l hilo this iinvoniionnuiy advantageously be usedwiih any class ofvossols drivon hy powor it is notzibly nsoful upon river limits havingrio contond with swift curronts und undor suoli conditionstlioiiforodtscribod appunti-us has boon sncvossfnlly usod up'on thoYukon rivor through :in onLii'o souson of navigation, :ind luisdemonstrated iLsolf to lw oliciont und muy to control. Hn'ving do-iilir-d my invontion, what. l Claim, is i. ln slowing.: uppnrutus. thocombination with tln` rnddor posi :ind n lillor lino. of :I powor vrlindoinu pluton within the` 'ylndor. invii-ifs upon tln Suid linowin-roby ih'` lino is opi-ruiivf-lyongngrd hy thc' piston win-n tholzii- (or is :wtnulod Iiy :Lpowor medium to moro in onu dirvltion und toongzxgu tho piston und movo ilul sumo when tho tilhr lin(` is mowd inlh(l oppnsilc` dirm'liou. und mvnns to vonti'ol tho udmision or osi-upvol' sud powor inodinin.

in sti-orhu.: :ipp:||'ntus. tho vonihnution with tho #touring whvol. :rruddor sini-k, :ind Iwo tillur lnos'inzib ine.: muuu-lion lwlwoon thowiwi-l und iln slm-k. ot' ai powor 'rlindor t'or ozu-li #nid lino. :ipion in ouch ,oylindvi'. :l lulinlnr piston rod tor ouch piston :indxh-mling lhrougrh oml houd only ol' tho rospuvtivo (gvlindors :indinvlosing :i portion' of tin` rospvvtlvo lllvr Hnos,l dovli'os n Llilionolits dorived from the hiinvaried hy the hitter' which :ire adaptedto he engaged .hy.tlie respvrivc pistons when the suino nro niorod .in

onu dircltlondiy ai power nivdiunl. u pump. ('omlnuni` (-:itivf-('onnm'tions hotwoon lln pulnp und on@ end of viil'li of siiitivyliiilltrs. :i vulve :iduptod t0 admit Suid uiodium to oitlwr of siiidcrlindors. -inununlly uvimiiod dovlros for controlling lho notion ot'\u1d volviund dcviri-s'nctuutod hy thel movcmvni of the rnddor stockwhol'vhy tli :i -tion of thi` vulve is :illouiod to rosrruin tho :utionof tho powvl iuodium within Suid ('ylindors.

Il. ln :l silci'im: uppui'utus. iho combination with tho :indconncrlions lwtwoin ilu' lut'tvr :ind the rudder Stork, of two poworovliiidors om'h provided with :i pision lm\'in; t :i tuhulzir piston rodprotruding tliroiurh'onr` head of the rospectii'o u ilndors, uidpistons. Said rods, :i rod forming.r pnrt of szid linos oxtvndim.ythrough ouch of Suid piston-rods und :idnprod to ho ouizugod hy therospoctlvv pistons. wlwn th(` luttor uro movod in u sinful(` droi'tiouonly, :i pump. oiumunl .ouch Suid uylndors. u volvo iulorposod withinsaid Connm'tlons. und moons for :lviuuting Suid volvo whorohy tho powerinodium mily lio pl'idvtorminulol;A udmirtuil llirouzh lliu propolofSuid conm-minus inro oiilor cylindor.

4. l n Stioiing: zippzinitus. th(l qomhinulion willi u ludY der Storkopoi'nlivvLv (-onnottod to iwo` tillor iinos. :i-nd snld tilloi' lilns.ot i\\'o power cylinders. :i piston in ouch of said v rlndors. moons tointroduc(` :i power luvdinm into Suid cylinders upon one sido only oftheir Vesper-tivo piston, n valve. u steering: hzindledmr. oporutivovonnortionh hvtween sutil vulve und handle-hui'. ronnrtons hetwvon thouhov` named connections und szlid ruddorl Stork wliorohy the vulv(` undthe bundle-hui' :iro :xl'ootod by tlm niovomonts of the rulldir Stork,moans whereby either of Huid Iiller lines uro' vnr-:mod hy therospvotivpistons whon :wird upon hy tlul powv'r medium. und moans forproduA tvrnilmitely .'ontroll'inhY thv supply of said medium io cithorof siiid cylindirs:

ln lostlniony whoroof L nlx my signature in proscrire' yof Iwowilnvssos. 4 i

